<!DOCTYPE html>
<html lang="en">

<head>
    <head charset="utf-8">
    <title>疫情可视化</title>
</head>

<body>
    <script>
        fetch("data/data.json").then(response => response.json())
            .then(data => console.log(data))
            .catch(e => console.log("Oops, error", e))
    </script>
</body>

</html>